package com.googlecode.chigscommons.repository.jpa.impl;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.springframework.orm.jpa.persistenceunit.MutablePersistenceUnitInfo;
import org.springframework.orm.jpa.persistenceunit.PersistenceUnitPostProcessor;

public class MergingPersistenceUnitPostProcessor implements PersistenceUnitPostProcessor {
	Map<String, List<String>> puiClasses = new HashMap<String, List<String>>();

	@Override
	public void postProcessPersistenceUnitInfo(MutablePersistenceUnitInfo pui) {
		List<String> classes = puiClasses.get(pui.getPersistenceUnitName());
		if (classes == null) {
			classes = new ArrayList<String>();
			puiClasses.put(pui.getPersistenceUnitName(), classes);
		}
		pui.getManagedClassNames().addAll(classes);
		classes.addAll(pui.getManagedClassNames());
	}
}
